A coating die head capable of adjusting cavity pressure in horizontal direction

Abstract

The present invention discloses a coating die head capable of adjusting the cavity pressure in the horizontal direction. The coating die head comprises an upper die head and a lower die head, wherein the front end gap between the upper die head and the lower die head forms a slit coating port; a storage cavity is provided in the lower die head, and the storage cavity is connected to the slit coating port; a cavity pressure regulating mechanism is arranged on the upper die head; the cavity pressure regulating mechanism comprises a slider located in the storage cavity, and a transmission regulating rod connected to the slider by a cam head; when the transmission regulating rod rotates, the cam head can drive the slider to move in the horizontal direction of the coating feed to adjust the cavity pressure of the storage cavity. The coating die head is provided with a cavity pressure regulating mechanism, which can realize the real-time and flexible adjustment of the cavity pressure of the storage cavity during the coating production process to adjust the flow rate and flow rate of the coating slurry; and it is equipped with a gap regulating mechanism to effectively complete the real-time adjustment of the flow rate and flow rate of the coating slurry during the coating production process.

Description

Technical Field

[0001] The invention relates to the technical field of coating equipment, and in particular to a coating die head capable of adjusting cavity pressure in a horizontal direction. Background Art

[0002] During the production of lithium battery pole pieces, slurry needs to be coated on the pole piece substrate. The uniformity of the coating surface density, lateral thickness consistency and accuracy are mainly determined by the slurry flow rate and flow rate before coating, and the slurry flow rate and flow rate are mainly determined by the storage chamber pressure and the coating port gap.

[0003] However, in the current coating die head, since the cavity pressure is fixed after the shape and size of the storage cavity are determined, the cavity pressure of the storage cavity cannot be flexibly adjusted, and it is impossible to adjust the flow rate and flow rate of the coating slurry by flexibly adjusting the cavity pressure of the storage cavity. The coating problem cannot be completely solved only by adjusting the gap of the coating port. Summary of the invention

[0004] The purpose of the present invention is to provide a coating die head with a cavity pressure that can adjust the cavity pressure in the horizontal direction in view of the defects or deficiencies in the prior art. The coating die head is provided with a cavity pressure regulating mechanism, which can adjust the cavity pressure of the storage cavity in the horizontal direction, so as to realize the real-time and flexible adjustment of the cavity pressure of the storage cavity during the coating production process to adjust the flow rate and flow of the coating slurry; and the gap regulating mechanism is provided to adjust the gap of the coating port in real time, so as to cooperate with the cavity pressure regulating mechanism to effectively complete the real-time adjustment of the flow rate and flow of the coating slurry during the coating production process.

[0005] The purpose of the present invention is achieved through the following technical solutions.

[0006] A coating die head capable of adjusting chamber pressure in a horizontal direction comprises an upper die head and a lower die head, wherein a slit coating port is formed at the front end gap between the upper die head and the lower die head; a feed port is provided at the rear end of the lower die head; a storage chamber is provided in the lower die head, and the feed port, the storage chamber and the slit coating port are sequentially connected along the coating feeding direction; a chamber pressure regulating mechanism is arranged on the upper die head; the chamber pressure regulating mechanism comprises a slider located in the storage chamber, and a transmission regulating rod having one end transmission connected to the slider and the other end passing through the top of the upper die head; a cam head is provided at the transmission connecting end of the transmission regulating rod to the slider; when the transmission regulating rod rotates, the cam head can drive the slider to move in the horizontal direction of the coating feed to adjust the chamber pressure of the storage chamber.

[0007] In a preferred embodiment, a pressing plate is fixedly connected to the slider; a strip-shaped limiting groove is provided on the pressing plate along the horizontal direction of the coating feed; a cam profile groove cooperating with the cam head is provided on the slider, and the cam profile groove corresponds to the strip-shaped limiting groove;

[0008] The cam head of the transmission adjustment rod is assembled in the cam profile groove, and the other end of the transmission adjustment rod is adapted to pass through the strip limit groove; when the transmission adjustment rod rotates, the cam head abuts against the cam profile groove with the inner contour of the cam profile groove as the moving contour, and is limited by the strip limit groove, driving the slider to move in the horizontal direction of the coating feed.

[0009] In a more preferred embodiment, a cam profile block is installed in the cam profile groove; the inner contour of the cam profile groove and the outer contour of the cam profile block together constitute the motion contour of the cam head and confine the cam head in the cam profile groove.

[0010] In a preferred embodiment, a sealing member is fixedly connected to the sliding block; and the sealing member maintains sealing contact with the upper die head.

[0011] In a more preferred embodiment, a gasket is sandwiched between the upper die head and the lower die head; the gasket has a coating opening; the upper die head, the coating opening of the gasket and the front end gap between the lower die head form a slit coating opening; and the sealing contact is maintained between the seal and the gasket.

[0012] In a preferred embodiment, the front end of the sliding block has an end surface corresponding to the front end of the material storage cavity, and can be tightly matched with the front end surface of the material storage cavity.

[0013] In a preferred embodiment, a shaft sleeve is provided between the portion of the transmission adjustment rod that passes through the upper die head and the upper die head.

[0014] In a preferred embodiment, an adjustment component is provided on the end of the transmission adjustment rod that passes through the upper die head, and is used for rotationally adjusting the transmission adjustment rod.

[0015] In a more preferred embodiment, the adjustment assembly includes an adjustment nut; the adjustment nut is relatively fixedly locked on the transmission adjustment rod.

[0016] In a preferred embodiment, in any of the above-mentioned coating die heads capable of adjusting the cavity pressure in the horizontal direction, the upper die head is further provided with a gap adjustment mechanism for adjusting the gap of the slit coating port.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The coating die head of the present invention is provided with a cavity pressure regulating mechanism, which comprises a slider located in the material storage cavity and a transmission regulating rod which is transmission-connected to the slider by a cam head structure. When the transmission regulating rod rotates, the slider can be driven to move in the horizontal direction to cooperate with the front end inner wall surface of the material storage cavity, so as to adjust the opening of the front end discharge port of the material storage cavity, so as to make the front end material storage port of the material storage cavity larger or smaller, thereby changing the cavity pressure of the material storage cavity, and further adjusting the flow rate and flow of the coating slurry. Among them, one end of the transmission regulating rod extends out of the upper die head, and is provided with an regulating component, so as to realize real-time and flexible adjustment of the cavity pressure of the material storage cavity during the coating production process, so as to adjust the flow rate and flow of the coating slurry, and improve the density uniformity, lateral thickness consistency and precision of the coating.

[0019] In addition, the coating die head is equipped with a gap adjustment mechanism, which can use a pull rod including a squeezable gasket to adjust the gap of the slit coating port. During the coating production process, the gap of the coating port can be adjusted in real time through the action of the pull rod. Therefore, in cooperation with the cavity pressure adjustment mechanism, the real-time adjustment of the coating slurry flow rate and flow rate during the coating production process is effectively completed, so that the slurry reaches a suitable flow rate and flow rate before coating, and the coating of slurries with different performances is realized, and the coating surface density after coating is uniform, the lateral thickness consistency is good, and the precision is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the coating die head of the present invention in a specific embodiment;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the coating die head of the present invention in a specific embodiment;

[0022] Figure 3 Schematic diagram of the structure of the upper die head when viewed from above;

[0023] Figure 4 For along Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0024] Figure 5 Schematic diagram of the top view of the lower die head;

[0025] Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0026] Figure 7 is a structural schematic diagram of the cavity pressure regulating mechanism;

[0027] Figure 8 It is a schematic diagram of the assembly structure of the cavity pressure regulating mechanism;

[0028] Fig. 9 For along Figure 7 Schematic diagram of the cross-sectional structure in the CC direction;

[0029] Fig.10 is a schematic diagram of a partially cutaway top view of the cavity pressure regulating mechanism;

[0030] Fig.11 It is a structural schematic diagram of the assembly of the cam head and the cam profile groove in the cavity pressure regulating mechanism;

[0031] Figure markings: 100-slit coating port, 1-upper die head, 10-upper die lip, 11-locking countersunk hole, 12-cavity pressure adjustment hole, 13-gap adjustment tie rod groove, 14-gap adjustment tie rod hole, 15-circulation discharge port, 2-lower die head, 20-lower die lip, 21-locking screw hole, 22-feeding port, 23-storage cavity, 24-pressure stabilizing cavity, 3-gasket, 4-cavity pressure adjustment mechanism, 41-slider, 411-cam profile Groove, 42-transmission adjustment rod, 420-light rod, 421-cam head, 43-seal, 44-pressure plate, 441-strip limit groove, 45-cam profile block, 46-first sleeve, 47-adjusting nut, 48-stop washer, 49-sealing ring, 5-clearance adjustment mechanism, 51-pull rod, 52-mounting seat, 53-coupling, 54-adjusting micrometer, 55-second sleeve, 6-connecting fixed block, 7-hinge. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments and drawings, but the protection scope and implementation methods of the present invention are not limited thereto. In the description of specific embodiments, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use, and are only used to distinguish the description, only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention, let alone an indication or implication of relative importance.

[0033] The coating die head of the present invention capable of adjusting the cavity pressure in the horizontal direction, see Figure 1 and Figure 2 As shown, it includes an upper die head 1 and a lower die head 2. The upper die head 1 has a locking countersunk hole 11, and the lower die head 2 has a locking screw hole 21 corresponding to the locking countersunk hole 11. The locking countersunk hole 11 and the locking screw hole 21 are fixedly connected by a fastening bolt to lock the upper die head 1 and the lower die head 2 with each other. Moreover, the upper die head 1 and the lower die head 2 are connected and locked by threading at the rear ends thereof in combination with a connecting fixing block 6, so that the upper die head 1 and the lower die head 2 maintain a stable relative position.

[0034] The rear ends of the upper die head 1 and the lower die head 2 are also hingedly connected by a hinge 7. After the bolts in the locking countersunk hole 11 and the connecting fixing block 6 are loosened, the upper die head 1 and the lower die head 2 can be hingedly turned over to replace the internal parts and clean the inside of the die head.

[0035] The front end of the upper die head 1 has an upper die lip 10, and the front end of the lower die head 2 has a lower die lip 20 corresponding to the upper die lip 10. The gap between the upper die lip 10 of the upper die head 1 and the lower die lip 20 of the lower die head 2 forms a slit coating port 100. During the coating operation, the slurry is extruded from the slit coating port 100 for coating. In addition, see Figure 3 As shown, the upper die head 1 is also provided with a circulation outlet 15 for slurry circulation.

[0036] In an optional embodiment, a gasket 3 is sandwiched between the upper die head 1 and the lower die head 2, and the gasket 3 has at least one coating opening. The slit coating opening 100 is formed by the gap between the lower die lip 10 of the upper die head 1, the coating opening of the gasket 3, and the lower die lip 20 of the lower die head 2.

[0037] Specifically, a feed port 22 is provided at the rear end of the lower die head 2, and the slurry for coating enters the die head through the feed port 22. A storage chamber 23 and a pressure stabilizing chamber 24 are provided in the lower die head 2, see Figure 5 and Figure 6 As shown, the storage chamber 23 and the pressure stabilizing chamber 24 are sequentially distributed along the coating feeding direction. In an optional embodiment, the storage chamber 23 and the pressure stabilizing chamber 24 are both strip-shaped chambers with their length directions along the left and right width directions, and the volume of the storage chamber 23 is greater than that of the pressure stabilizing chamber 24.

[0038] The storage chamber 23 is connected to the feed port 22, a first flow channel connecting the storage chamber 23 and the pressure stabilizing chamber 24 is provided between the storage chamber 23 and the pressure stabilizing chamber 24, and a second flow channel connecting the pressure stabilizing chamber 24 and the slit coating port 100 is provided between the pressure stabilizing chamber 24 and the slit coating port 100, so that the feed port 22, the storage chamber 23, the pressure stabilizing chamber 24 and the slit coating port 100 are connected in sequence along the coating feeding direction.

[0039] During coating operation, the slurry enters the die head from the feed port 22 and flows into the storage chamber 23; after the storage chamber 23 is full, the slurry flowing in is pressurized evenly by the first flow channel and then enters the pressure stabilizing chamber 24; after the pressure stabilizing chamber 24 is full, it overflows to the second flow channel, and after the second flow channel makes the slurry uniform in the coating width direction, it is extruded through the coating gap of the slit coating port 100 to achieve coating.

[0040] In a specific embodiment, a cavity pressure regulating mechanism 4 is provided on the upper die head 1 , which can regulate the cavity pressure of the material storage cavity 23 .

[0041] See also Figure 7 to Figure 10 As shown, the cavity pressure regulating mechanism 4 includes a slider 41 and a transmission adjusting rod 42. The slider 41 is arranged in the storage cavity 23. Optionally, the slider 41 is a strip block with a length direction running left and right, and is located near the front end discharge position of the storage cavity 23. One end of the transmission adjusting rod 42 is transmission-connected to the slider 41, and the other end of the transmission adjusting rod 42 is vertically penetrated to the outside of the top of the upper die head 1. When the transmission adjusting rod 42 rotates, the cam head 421 can drive the slider 41 to move in the horizontal direction of the coating feed to adjust the cavity pressure of the storage cavity 23. Moreover, optionally, in order to ensure the balance of the transmission adjusting rod 42 in adjusting the horizontal movement of the slider 41, the transmission adjusting rod 42 includes at least two rods distributed on the left and right and close to the center.

[0042] Further optionally, the transmission adjustment rod 42 includes a smooth rod 420 and a cam head 421 at the transmission connection end with the slider 41. Figure 3 and Figure 4 As shown, the upper die head 1 has a cavity pressure regulating hole 12 for accommodating the transmission regulating rod 42 to pass through, one end of the polished rod 420 is fixedly connected to the cam head 421, and the other end vertically extends out of the top of the upper die head 1 through the cavity pressure regulating hole 12 on the upper die head 1. A first shaft sleeve 46 is sleeved between the portion of the polished rod 420 of the transmission regulating rod 42 that passes through the upper die head 1 and the upper die head 1, and the polished rod 420 and the first shaft sleeve 46 together constitute a rotating pair of the transmission regulating rod 42, so that it can rotate freely in the cavity pressure regulating hole 12.

[0043] In a preferred embodiment, a pressing plate 44 is fixedly connected to the slider 41, and a strip-shaped limiting groove 441 is provided on the pressing plate 44 along the horizontal direction of the coating feed. A cam profile groove 411 cooperating with the cam head 421 is provided on the slider 41, and the cam profile groove 411 corresponds to the strip-shaped limiting groove 441. The cam head 421 of the transmission adjustment rod 42 is assembled in the cam profile groove 411, and the smooth rod 420 of the transmission adjustment rod 42 is adapted to pass through the strip-shaped limiting groove 441.

[0044] When the transmission adjustment rod 42 rotates, the cam head 421 abuts against the cam contour groove 411 with the inner contour of the cam contour groove 411 as the moving contour, and is limited by the strip limit groove 441. The limitation of the strip limit groove 441 enables the slider 41 to move only along the length direction of the strip limit groove 441, driving the slider 41 to move in the horizontal direction of the coating feed. In an optional embodiment, the cam head 421 is circular and eccentrically connected to the polished rod 420, the cam profile groove 411 is adapted to the outer diameter of the cam head 421 and the direction is perpendicular to the coating direction, and the strip limit groove 411 is adapted to the outer diameter of the polished rod 420 and the direction is consistent with the coating direction; during operation, the rotation of the polished rod 420 drives the cam head 421 to perform eccentric movement, so that the radius change perpendicular to the coating direction can be released in the cam profile groove 411, and the diameter change in the coating direction will drive the slider 41 to move along the strip limit groove 411.

[0045] In this way, when the slider 41 moves in the horizontal direction, it can cooperate with the front end inner wall surface of the storage chamber 23 to adjust the opening of the front end discharge port of the storage chamber 23, so that the front end storage port of the storage chamber 23 will become larger or smaller, thereby changing the chamber pressure of the storage chamber 23, and further adjusting the flow rate and flow rate of the coating slurry flowing out of the storage chamber 23.

[0046] Further, to ensure that the cam head 421 is easy to install, please refer to Fig.11 As shown, a cam profile block 45 is installed in the cam profile groove 411. During the assembly process of the cam head 421 of the transmission adjustment rod 42, the cam head 421 is first placed in the cam profile groove 411, and then the cam profile block 45 is assembled in the cam profile groove 411, so that the inner contour of the cam profile groove 44 and the outer contour of the cam profile block 45 together constitute the motion contour of the cam head 421, and the cam head 421 is restricted in the cam profile groove 44, ensuring the stable assembly of the cam head 421 and ensuring that the cam head 421 stably drives the slider 41 to move in the horizontal direction in the cam profile groove 411.

[0047] Moreover, the front end of the slider 41 has an end surface corresponding to the front end of the storage cavity 23, and can be tightly matched with the front end surface of the storage cavity 23, so that the cavity pressure in the storage cavity 23 can be adjusted more accurately. In addition, when the slider 41 moves horizontally until its front end surface contacts the front end surface of the storage cavity 23, the storage cavity 23 can be cut off, and the adjustment range is wide. Figure 2 As shown, the front end surface of the material storage cavity 23 is an inclined surface, and the front end surface of the slider 41 is an inclined surface corresponding thereto.

[0048] A seal 43 is fixedly connected to the slider 41. The seal 43 maintains a sealed contact with the upper die 1 to seal the gap between the slider 41 and the upper die 1, thereby ensuring that the slurry in the storage chamber 23 flows out from between the front end of the storage chamber 23 and the slider 41, and does not flow out from the gap between the slider 41 and the upper die 1 over the slider 41, and further ensures that the slurry in the storage chamber 23 does not penetrate into the cavity pressure regulating hole 12 or even overflow. In a specific embodiment, the seal 43 maintains a sealed contact with the gasket 3, and the slider 41 always keeps a close fit with the gasket 3 during the movement.

[0049] In an optional embodiment, the seal 43 is arranged between the pressure plate 44 and the slider 41, and has a strip groove corresponding to the strip limit groove 441 on the seal 43, and the light rod 420 of the transmission adjustment rod 42 passes through the seal 43 and the pressure plate 44; moreover, the front and rear side edges of the seal 43 protrude upward for sealing contact.

[0050] In addition, a sealing ring 49 is provided on the portion of the light rod 420 of the transmission adjustment rod 42 that passes through the upper die head 1 and the upper die head 1 to seal between the light rod 420 and the inner wall of the cavity pressure adjustment hole 12 to prevent dust and pollution.

[0051] Furthermore, an adjustment component is provided on one end of the polished rod 420 of the transmission adjustment rod 42 that passes through the upper die head 1, for rotationally adjusting the transmission adjustment rod. Optionally, the adjustment component includes a mechanical adjustment mechanism such as a screw nut, a cam handle, an adjustment differential head, or an automatic adjustment mechanism such as a cylinder and a motor.

[0052] In a specific embodiment, the adjustment assembly includes an adjustment nut 47; the adjustment nut 47 and the transmission adjustment rod 42 are relatively fixedly locked on the transmission adjustment rod 42. In addition, a stop washer 48 is provided between the adjustment nut 47 and the first sleeve 46 through a gasket to prevent the relative rotation between the adjustment nut 47 and the light rod 420. When the cavity pressure of the storage chamber 23 needs to be adjusted, the adjustment nut 47 is rotated by a tool such as a wrench, so that the transmission adjustment rod 42 can be rotated and the cam head 421 on the transmission adjustment rod 42 can be rotated synchronously, thereby driving the slider 41 to move in the horizontal direction, so as to realize the real-time and flexible adjustment of the cavity pressure of the storage chamber 23 during the coating production process to adjust the flow rate and flow of the coating slurry.

[0053] In addition, in another preferred embodiment, see Figure 1 and Figure 2As shown, the upper die head is also provided with a gap adjustment mechanism 5 for adjusting the gap between the upper die head 1 and the lower die head 2 near the slit coating port 100, thereby adjusting the flow rate and flow of the slurry. Moreover, optionally, the gap adjustment mechanism 5 includes a plurality of gap adjustment mechanisms evenly arranged along the coating width direction.

[0054] Specifically, the gap adjustment mechanism 5 includes an adjustment micrometer head 54, a mounting seat 52, and a pull rod 51 that can squeeze the gasket 3 to adjust the gap of the slit coating port 100. The adjustment micrometer head 54 is fixedly mounted on the mounting seat 52, and the mounting seat 52 is fixedly mounted on the top of the upper die head 1; see Figure 3 and Figure 4 As shown, the upper die head 1 is provided with a gap adjustment tie rod hole 14 for accommodating a tie rod 51 passing through, one end of the tie rod 51 passes through the gap adjustment tie rod hole 14 on the upper die head 1 and extends out of the top of the upper die head 1, and is connected to the adjusting micrometer 54 through a coupling 53, and the other end of the tie rod 51 abuts against the gasket 3; the diameter of the end portion of the tie rod 51 abutting against the gasket 3 is larger than the diameter of the rod body, and a gap adjustment tie rod groove 13 is provided coaxially with the gap adjustment tie rod hole 14 on the side of the upper die head 1 close to the gasket 3, and the end portion of the tie rod 51 abutting against the gasket 3 can freely extend and retract in the gap adjustment tie rod groove 13; and a second shaft sleeve 55 is sleeved between the tie rod 51 and the gap adjustment tie rod hole 14 to achieve free rotation in the gap adjustment tie rod hole 14.

[0055] During operation, the micrometer head 54 is rotated to adjust the position of the pull rod 51 in the gap pull rod groove 13 in the vertical direction, and the coating gap is adjusted by squeezing the gasket 3 by the pull rod 51. Therefore, in cooperation with the cavity pressure adjustment mechanism 4, the coating slurry flow rate and flow rate are effectively adjusted in real time during the coating production process, so that the slurry reaches a suitable flow rate and flow rate before coating, and the coating of slurries with different properties is realized, and the coating surface density after coating is uniform, the lateral thickness is consistent, and the precision is high.

[0056] The above embodiments are only preferred embodiments of the present invention and are only intended to further describe the technical solutions of the present invention in detail. However, the protection scope and implementation methods of the present invention are not limited thereto. Any changes, combinations, deletions, replacements or modifications that do not deviate from the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coating die head capable of adjusting cavity pressure in a horizontal direction, comprising an upper die head and a lower die head, wherein a front end gap between the upper die head and the lower die head forms a slit coating port; a feed port is provided at the rear end of the lower die head; a storage cavity is provided in the lower die head, and the feed port, the storage cavity and the slit coating port are sequentially connected along a coating feeding direction; characterized in that: The upper die head is provided with a cavity pressure regulating mechanism; the cavity pressure regulating mechanism comprises a slider located in the material storage cavity, and a transmission regulating rod having one end transmission-connected with the slider and the other end passing through the top of the upper die head; the transmission regulating rod and the slider transmission connection end have a cam head; when the transmission regulating rod rotates, the cam head can drive the slider to move in the horizontal direction of the coating feed, so as to adjust the cavity pressure of the material storage cavity; A pressing plate is fixedly connected to the slider; a strip-shaped limiting groove is provided on the pressing plate along the horizontal direction of the coating feed; a cam profile groove cooperating with the cam head is provided on the slider, and the cam profile groove corresponds to the strip-shaped limiting groove; The cam head of the transmission adjustment rod is assembled in the cam profile groove, and the other end of the transmission adjustment rod is adapted to pass through the strip-shaped limiting groove; when the transmission adjustment rod rotates, the cam head abuts against the cam profile groove with the inner profile of the cam profile groove as the moving profile, and is limited by the strip-shaped limiting groove, so as to drive the slider to move in the horizontal direction of the coating feed; A cam profile block is installed in the cam profile groove; the inner contour of the cam profile groove and the outer contour of the cam profile block together constitute the motion contour of the cam head, and the cam head is restricted in the cam profile groove; The front end of the sliding block has an end surface corresponding to the front end of the material storage cavity, and can be tightly matched with the front end surface of the material storage cavity.

2. A coating die head capable of adjusting cavity pressure in horizontal direction according to claim 1, characterized in that: A sealing member is fixedly connected to the sliding block; the sealing member maintains sealing contact with the upper die head.

3. A coating die head capable of adjusting cavity pressure in horizontal direction according to claim 2, characterized in that: A gasket is sandwiched between the upper die head and the lower die head; the gasket has a coating opening; the front end gap between the upper die head, the coating opening of the gasket and the lower die head forms a slit coating opening; the sealing member maintains sealing contact with the gasket.

4. A coating die head capable of adjusting cavity pressure in horizontal direction according to claim 1, characterized in that: A shaft sleeve is sleeved between the portion of the transmission adjustment rod that passes through the upper die head and the upper die head.

5. A coating die head capable of adjusting cavity pressure in horizontal direction according to claim 1, characterized in that: An adjustment component is arranged on one end of the transmission adjustment rod that passes through the upper die head, and is used for rotationally adjusting the transmission adjustment rod.

6. A coating die head capable of adjusting cavity pressure in horizontal direction according to claim 5, characterized in that: The adjusting assembly comprises an adjusting nut; the adjusting nut is relatively fixedly locked on the transmission adjusting rod.

7. A coating die head capable of adjusting cavity pressure in horizontal direction according to any one of claims 1 to 6, characterized in that: The upper die head is also provided with a gap adjustment mechanism for adjusting the gap of the slit coating port.

Images